JP2003052485A - Headrest - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate restriction in the design of a headrest integrated with a seat back and also to improve its assembling performance. SOLUTION: The headrest is constituted to obtain an integrated feeling with the seat back 20. A pad material 40 is arranged at the outer side of an insert member 34 and a headrest cover 42 is covered at the outside of the pad material 40 in a headrest body 30 to be built in a headrest frame 32 which is integrated with a seat back frame 22. Then the opening terminal of the headrest cover 42 is connected to the edge of an open part 36 in the insert member 34.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle seat headrest, and more particularly to a headrest constructed so as to provide a feeling of unity with a seatback.

[0002]

2. Description of the Related Art This type of headrest is designed to be assembled by utilizing a part of a seatback frame in order to give a feeling of unity with a seatback. FIG. 14 is a sectional view showing an example of a conventional headrest mounting structure. As shown in this drawing, the seat back frame 100
A net body 104 stretched around a wire frame 102 is assembled to the front open portion of the. A headrest 110 having a structure in which a cover 114 is placed on the outside of the pad 112 is attached to the seat back. The headrest 110 includes a plurality of clips 116, 1 attached to a resin plate 115 inside the cover 114.
18 are pre-installed. The headrest 110 is attached to the seat back by the clip 116.
Is connected to the portion 100a integrated with the seat back frame 100, and another clip 118 is connected to the net body 104.

[0003]

[Problems to be Solved by the Invention] The headrest 11
Workability is poor because multiple clips are used to assemble 0 into the seat back. Also headrest 110
Is finished by itself even before being attached to the seat back, but is subject to design restrictions due to the above-mentioned assembling structure. The present invention is intended to solve the above-described problems, and an object thereof is to eliminate the design restriction of the headrest that has a sense of unity with the seat back, and to improve the assembling performance thereof.

[0004]

DISCLOSURE OF THE INVENTION The present invention is to achieve the above object, and the invention according to claim 1 is a headrest configured so as to provide a feeling of unity with a seat back, The headrest body is assembled to the headrest frame that is integral with the back frame. The headrest body has a structure in which a pad material is provided on the outside of the insert member, and a headrest cover is put on the outside of the pad material. The insert member is set so that the headrest body is assembled by inserting the headrest frame from the lower opening. The headrest cover is covered with the pad material by the opening at the bottom, and the opening end of the headrest cover is coupled to the edge of the opening portion of the insert member. As described above, according to the above configuration, in the headrest of the type integrated with the seat back, the headrest body before being assembled to the headrest frame is finished as a design by itself, but the headrest body is in that state. Can be assembled with one touch by covering the headrest frame from above. Therefore, the design restrictions of this type of headrest are eliminated, and the assembling performance is improved.

The invention according to claim 2 is the headrest according to claim 1, wherein the headrest frame and the insert member are connected to each other by a locking means. By the locking means, not only the assembling property of the headrest with respect to the headrest frame but also the workability for disassembling is improved.

According to a third aspect of the present invention, in the headrest according to the second aspect, the locking means fits the concavities and convexities of the insert member and the headrest frame to each other at least above and below the insert member. It is set in a combined structure. This ensures the positioning of the headrest body with respect to the headrest frame.

The invention according to claim 4 is the headrest according to claim 1, 2 or 3, wherein the headrest frame and the insert member are provided at a plurality of positions in the width direction of the headrest body, and A contact portion is provided that contacts in a predetermined range in the vertical direction. As a result, the inclination of the headrest body with respect to the headrest frame is restricted, and the posture of the headrest with respect to the seat back is stabilized.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to FIG.
-13. FIG. 1 is a perspective view showing the appearance of a vehicle seat (front seat). This seat is of a type called "net seat", and net bodies are used for the covers 12 and 24 of the seat cushion 10 and the seat back 20, respectively. In this net body, a non-woven fabric (fiber) woven into a net shape,
Alternatively, a net-shaped woven fabric is integrally formed, or each piece is formed and joined together. By tensioning such a net body with appropriate elasticity, the seating surface of the seat cushion 10 and the backrest surface of the seatback 20 have cushioning properties. A headrest is attached to the upper part of the seatback 20 in a state of having a sense of unity with the seatback 20. Note that the covers 12 and 24 are sheet members of commonly used fabric, leather, resin, etc.,
Any material can be used as long as it can obtain the same characteristics as those of the net body.

FIG. 2 is a perspective view showing the upper portion of the seat back 20 and the headrest in a disassembled state, and FIG. 3 is an enlarged sectional view showing the left half of the upper portion of the seat back 20 and the headrest. As shown in these drawings, the seat back 20 has a structure in which a seat back cover 24 (net body) is attached to the outside of a seat back frame 22. In addition, an arched headrest frame 32 is provided at the center of the upper portion of the seatback frame 22.
Are integrally formed, and the frame 32 is exposed from the seat back cover 24.

With respect to the headrest frame 32,
The headrest body 30 is assembled so as to cover it from above. In the headrest body 30, the pad material 40 is located outside the insert member 34, and the pad 4
The headrest cover 42 is put on the outer side of 0. The insert member 34 is an integrally molded product made of, for example, a synthetic resin material, and the pad member 40 is a molded product made of urethane foam or the like. Also, for the headrest cover 42, a net body of the same quality as the seat back cover 24 is used because of design considerations.

FIG. 4 is a sectional view taken along the line AA of FIG.
3 is a sectional view taken along the line BB of FIG. 3, FIG. 6 is a sectional view taken along the line CC of FIG. 3, and FIG. 7 is a sectional view taken along the line DD of FIG.
3 is a sectional view taken along line EE of FIG. 3, and FIG. 9 is a sectional view taken along line FF of FIG. 10 is a sectional view taken along line GG of FIG. 3, FIG. 11 is a sectional view taken along line HH of FIG. 3, and FIG.
3 is a sectional view taken along line JJ of FIG. 3, and FIG. 13 is a sectional view taken along line LL of FIG.

As is clear from these drawings, the insert member 34 has a hollow shape having an opening portion 36 at its lower portion. When the headrest body 30 is put on the headrest frame 32, the opening 36
The headrest frame 32 enters the inside of the insert member 34 from. The upper portion of the seat back 20 is inserted near the opening portion 36.

The pad member 40 is an insert member 34.
It is put on in a state of covering the entire outside of the above except the open portion 36. The headrest cover 42
Has a bag shape with an opening at the bottom, and the opening covers the pad material 40. Further, hooks 44, 46, 4 are provided at the opening ends of the headrest cover 42.
8 is attached to the cover 42 by sewing or welding (FIGS. 4 to 6 and FIG. 12).

When the headrest cover 42 is placed on the outside of the pad material 40, the headrest cover 4
The hook 44 located in the center front side of the opening end in 2 is hooked and joined to the front edge of the opening 36 in the insert member 34 (FIGS. 4 to 6). In parallel with this, the hooks 46 located on the front and rear of both sides of the opening end of the headrest cover 42 are hooked on the front and rear edges of the opening 36 of the insert member 34 (FIG. 12). The headrest body 30 in this state is finished by itself, and therefore, the design of the headrest body 30 can be freely set before being assembled to the seatback 20.

Next, hooks 44 and 48 located in the front and rear of the center of the opening end of the headrest cover 42 are hooked to the front and rear edges of the open portion 36 of the insert member 34 to bring them into a connected state, and the headrest frame 32 is placed inside the insert member 34. Headrest body 30 as if entering
Is put on the upper part of the seat back 20 and assembled (FIGS. 4 and 5). As a result, the headrest cover 42 is properly stretched along the surface of the pad material 40 and finally finished.

As shown in FIG. 4, the insert member 3
A slit-shaped fitting portion 38 is formed at the center of the upper portion of the head 4, and an upper edge portion 33 at the center of the upper portion of the headrest frame 32 is engaged with the fitting portion 38. Figure 4
As is clear from FIG. 4B, which is a partially enlarged view of FIG. 4A, there is a claw 38a inside the fitting portion 38. This claw 38a
The upper edge 33 is engaged with the upper edge 33, and in this state, the upper edge 33 is received by the arcuate restricting surface 38b located on the opposite side of the claw 38a. As a result, the position of the headrest body 30 is regulated with respect to the seatback 20 in the upward direction (removal direction). Once the fitting portion 38 and the upper edge portion 33 are engaged with each other, the mutual engagement state is maintained unless an external force to disengage them is applied.

Further, as shown in FIGS. 7 to 9, the back wall of the insert member 34 is partially opened, and a part thereof is a fitting portion 39 shown in FIG. The shoulder portion 23 of the seat back frame 22 is engaged with the fitting portion 39. As is apparent from FIG. 8B, which is a partially enlarged view of FIG. 8A, the lower edge of the fitting portion 39 is a locking portion 39a. The tip portion of the shoulder portion 23 is engaged with the locking portion 39a, and in this state, the shoulder portion 23 is received by the restricting surface 39b that projects to the inside of the insert member 34. As a result, the downward position of the headrest body 30 with respect to the seat back 20 is regulated, and this engaged state is stably maintained.

The shoulder portion 23 of the seat back frame 22
Can be regarded as the base of the headrest frame 32. Therefore, the insert member 34
The fitting portions 38 and 39 provided above and below the headrest frame 32 are connected to a part of the headrest frame 32, respectively. The insert member 3 is formed by the fitting portions 38 and 39 and the upper edge portion 33 and the shoulder portion 23.
4 and the headrest frame 32 are engaged with each other to form a "locking means". By these "locking means", the headrest body 30 is vertically positioned with respect to the headrest frame 32 and is not easily disengaged.

As shown in FIG. 3 or 10, both side surfaces of the headrest frame 32 are in contact with the ribs 35 formed inside the insert member 34, whereby the headrest body 30 with respect to the seatback 20 is contacted.
The position in the width direction (horizontal direction) is restricted. Further, the headrest frame 32 and the insert member 34 are provided with contact portions 32a, 34a which are in contact with each other on both sides in the vertical direction over a predetermined range (FIG. 5). The contact portions 32a and 34a regulate the inclination of the headrest body 30 in the front-rear direction with respect to the headrest frame 32. With these structures, the posture of the headrest body 30 with respect to the seatback 20 is stabilized.

Seat back 2 for disassembling the seat, etc.
When the headrest body 30 is removed from 0, the headrest body 30 is pulled upward by a predetermined force, whereby the upper edge portion 33 of the headrest frame 32, which is the upper "locking means", and the fitting portion of the insert member 34 are joined together. 38 disengage. Note that the engagement between the shoulder portion 23, which is the lower "locking means", and the fitting portion 39 is not restricted in any direction with respect to the direction in which the headrest body 30 is removed, and therefore, the upper edge portion 33 and the fitting portion 38 are not restricted.
Disengage the headrest body 30 from the seat back 2
It can be removed from 0.

As is clear from the above description, since the headrest body 30 is in a finished state as a single body, the various components that compose the headrest are individually handled even before being assembled to the seat back 20. It's easier than that. Further, the headrest body 30 can be attached to the seat back 20 by one-touch by covering the headrest frame 32 from above the headrest frame 32. The headrest body 30 after being assembled to the seatback 20 is kept in a stable posture by the above-described related structure of the headrest frame 32 and the insert member 34.

[Brief description of drawings]

FIG. 1 is a perspective view showing the appearance of a vehicle seat (front seat).

FIG. 2 is a perspective view showing an upper part of a seat back and a headrest in a disassembled state.

FIG. 3 is an enlarged sectional view showing the left half of the upper part of the seat back and the headrest.

FIG. 4 is a sectional view taken along the line AA of FIG.

5 is a sectional view taken along the line BB of FIG.

6 is a sectional view taken along the line C-C of FIG.

FIG. 7 is a sectional view taken along the line D-D in FIG.

FIG. 8 is a sectional view taken along the line EE of FIG.

9 is a sectional view taken along the line F-F in FIG.

10 is a sectional view taken along the line G-G in FIG.

11 is a sectional view taken along the line H-H of FIG.

FIG. 12 is a sectional view taken along the line JJ of FIG.

FIG. 13 is a sectional view taken along the line L-L of FIG.

FIG. 14 is a sectional view showing an example of a conventional headrest mounting structure.

[Explanation of symbols]

20 seat back 22 seat back frame 30 headrest body 32 headrest frame 34 Insert member 36 Open section 40 pad material 42 headrest cover

Continued front page    (72) Inventor Kiyoyoshi Matsubayashi             1 Toyota Town, Toyota City, Aichi Prefecture Toyota Auto             Car Co., Ltd. (72) Inventor Yasuki Hasegawa             1 Toyota Town, Toyota City, Aichi Prefecture Toyota Auto             Car Co., Ltd. (72) Inventor Shigeru Fukuda             1 Toyota Town, Toyota City, Aichi Prefecture Toyota Auto             Car Co., Ltd. F-term (reference) 3B084 DA02 DD04 DD07                 3B087 DC05

Claims (4)

[Claims] 1. A headrest configured to give a feeling of unity with a seat back, wherein a headrest body is assembled to a headrest frame integrated with a seatback frame, and the headrest body is a pad material on the outside of an insert member. Is provided, and the headrest cover is put on the outside of the pad member, and the insert member is set so that the headrest body is assembled by inserting the headrest frame from the lower opening portion. The headrest cover is covered with the pad material by a lower opening, and an opening end of the headrest cover is coupled to an edge of the opening portion of the insert member. 2. The headrest according to claim 1, wherein the headrest frame and the insert member are connected to each other by locking means. 3. The headrest according to claim 2, wherein the locking means has a structure in which projections and depressions of the insert member and the headrest frame are fitted to each other at least above and below the insert member. Headrest. 4. The headrest according to claim 1, 2 or 3, wherein the headrest frame and the insert member are provided at a plurality of positions in a width direction of the headrest body and over a predetermined range in a vertical direction. A headrest that has a contact part that contacts.